The 2008 Michigan Republican primary took place on January 15, 2008. Mitt Romney came in first with 39 percent of the vote, followed by John McCain with 30 percent and Mike Huckabee in third-place with 16 percent. The victory was widely viewed as critical for the Romney campaign, as a loss in Michigan, where his father was governor, would have resulted in a loss of momentum after two losses already in New Hampshire and Iowa.

National delegates determined: 30 out of 60

In accordance with Republican National Committee rules, Michigan was stripped of half its delegates for holding primary contests before February 5, 2008.